Some subscribers to Math-Teach might be interested in a recent
post "The Contentious Common Core Controversy" [Hake
(2013)]. The abstract reads:

ABSTRACT: The Common Core State Standards (CCSS)
<http://www.corestandards.org/> have engendered considerable
controversy - see e.g., "Resistance to Common Core standards
growing" [Strauss (2013)] at <http://wapo.st/Y7kwdK>.
Stimulated by Diane Ravitch's (2013) admonition at
<http://bit.ly/XGpEpK> "to think critically about the
standards," I searched Google for "Common Core State
Standards" to obtain 3,010,000 hits at <http://bit.ly/15QLBZR>
on 03 March 2013 10:15-0800. Careful consideration of all those leads
me to suggest the following sixteen as especially valuable:

16. "The Case for National Standards" [Weingarten
(2009)] at <http://wapo.st/XbIJ6K>.

For an earlier review of the pros and cons of the Common Core
Standards see "National Education Standards for the United
States?" [Hake (2009)] at <http://bit.ly/Z0DMLK>. In a
subsequent post I shall discuss the "Next Generation Science
Standards" (NGSS) <http://bit.ly/y1gJPx> and their
relationship to the "Common Core State Standards."